JEE Main Chemistry question

The pH value of a solution in which a polar amino acid does not migrate under the influence of an electric field is called:

(A)Isoelectronic point
(B)Isoelectric pointCorrect
(C)Neutralization point
(D)None of these

Answer: (B)

Solution

At its isoelectric point (pI), a zwitterionic amino acid carries equal numbers of positive and negative charges, so its net charge is zero and it does not migrate towards either electrode in an electric field (as in electrophoresis).

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-151049